George Fisher Mine (previously Hilton mine) is an underground zinc-lead-silver mine. It has two separate mining areas. The older Hilton mine is now known as George Fisher South and the newer mining area is George Fisher North (previously Hilton North).

The George Fisher orebody is an economic sulphide mineralisation. It is distinct from the nearby Mount Isa deposit due to its lack of breccia-hosted copper mineralisation. The deposit is composed of a series of 11 stratiform orebodies striking near N-S and dipping west between 30°-90°.

Lead-zinc-silver mineralisation occurs in galena and sphalerite-rich bedding parallel horizons in dolomitic and variably carbonaceous pyritic shales and siltstones. Orebody and structural interpretation, modelling and classification of the mineral resource was completed on the basis of additional geological information and improved systems.

A feasibility project for George Fisher Mine was conducted from 2009 to 2014 installing a new materials handling system and opening up a new mining block down to 1,160 metres at the Northern end of the George Fisher orebody with the capacity to increase production to 4.5 million tonnes of ore per annum.

The current extraction method at George Fisher is sublevel open stoping.

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